Matrix for use in the production of type-bars.



M. H. WHITTAKER. MATRIX FOR USE IN THE PRODUCTION OF TYPE BARS.

APPLICATION FILED SEPT.27,1913.

Patented June 2, 1914.

* UNITED STATES PATENT OFFICE.

MATTHEW HENRY WHITTAKER, 0F MANCHESTER, ENGLAND, ASSIGNOR TO LINOTYPE AND MACHINERY LIMITED, 0]? LONDON, ENGLAND.

MATRIX FOR USE IN THE PRODUCTION OF TYPE-BARS.

Specification of Letters Patent.

Patented June 2, 1914.

Driginal application filed July 17, 1912, Serial No. 709,902. Divided and this application filed September Serial No. 792,079.

To all whom it may concern Be it known that I, MAI'II-IEW HENRY WHrrrAKER, a subject of the King of the United'Kingdom of Great Britain and Ireland, residing at Norton House, Hornby Road, Old Trafford, Manchester, in the county of Lancaster, England, have invented new and useful Improvements in Matrices for Use. in the Production of T ype-Bars, of which the following is a specification.

This invention relates to matrices for use in the production of type bars and particularly those type bars which, when in operative form and ready for use, are, in addition to printing surfaces of type height, pro vided with upstanding spurs or projections of greater than type height. Type bars of that description are fully described and claimed in an application for Letters Patent Serial Number 709,902, filed July 17th 1912, hereinafter referred to as the original application, from which original application the present one has been divided.

The invention will be best understood by reference to the accompanying drawings, in.

which 1-- Figure 1 is aperspective view of one of theimproved matrices adaptedto cast a section of a single rule; Fig. 2 is a vertical section of a portion of the same; Fig. 3 is a perspective view of portions of two juxtaposed type bars with a single rule such as would be cast from the matrix shown in Figs. 1 and 2; Fig. 1 is an end elevation of a series of juxtaposed type bars such as those shown in Fig. 3; Fig. 5 is a view similar to Fig. 1 of one of, the improved matrices adapted to cast a section of a double rule, and Fig. 6 is an elevation of a part of a type bar with a double rule cast thereon as from the matrix shown in Fig. 5.

For the production of the before particularized type bars, the formative cavities 1 of the matrices 2, are provided with terminal depressionsfi, see particularly Fig. 2, so as to produce on the resultant type bars 4 short and preferably tapered, spurs or projections 5, which, as shown in Fig. 3, project above type height, these spurs being situated either one at each end of the respective rule seotion, as shown in the drawings, or at one and only of the said rule section.

When a seriesof the just described type bars 4 are imposed in the form, with adja cent rule sections in substantial alinement, as indicated for example in Fig. 3, with the spurs 5 extending above type height (which latter is exemplified by the dimension a. in Fig. 4) the said spurs can either be burnished down to type height, to bridge over gaps existing between the rule sections of adjacent type bars, or left standing above type height for the purpose of perforating the sheets for the printing of which the type bars may be subsequently employed. all as fully'explained in the aforesaid original application.

For the production of type bars having double rule sections thereon, as shown in Fig. 6, the matrices, as shown inFigyb, would have two side-by-side formative cavities 1, each like that previously described, and each producing a rule section of type height having upstanding spurs at its respectively opposite ends.

Having described my invention, I declare that what I claim and desire to secure by Letters Patent is 1. In a matrix for the production of type bars, a formative cavity adapted to produce in combination a type-high printing surface aud a spur of greater than type height at the end of said printing surface and adapted to be bent over to form a continuation thereof.

2. In a matrix for the production of'type bars, a formative cavity adapted to produce in combination a type-high printing surface and a plurality of spurs of greater than type height, two of these spurs being situated. at respectively opposite ends of the type-high printing surface and adapted to be bent over to form a continuation thereof.

In witness whereof I have hereunto -set my hand in the presence of two witnesses.

MATTHEW HENRY WHITTAKER.

Witnesses:

CHARLES HOLLIWELL, THOMAS Boss. 

